| DOI: | 10.1306/10311312204
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| Scopus记录号: | 2-s2.0-84903616410
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| 论文题名: | Fault displacement gradients on normal faults and associated deformation |
| 作者: | Morris A.P.; McGinnis R.N.; Ferrill D.A.
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| 刊名: | AAPG Bulletin
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| ISSN: | 0149-1545
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| EISSN: | 1558-9275
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| 出版年: | 2014
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| 发表日期: | 2014
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| 卷: | 98, 期:6 | | 起始页码: | 1161
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| 结束页码: | 1184
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| 语种: | 英语
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| Scopus关键词: | Seismology
; Deformation feature
; Deformation pattern
; Displacement gradients
; Far-field stress
; Fault displacement
; Lateral displacements
; Production rates
; Production strategy
; Deformation
; deformation
; fault displacement
; folding
; gradient analysis
; hydrocarbon
; normal fault
; paleostress
; Texas
; United States
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| Scopus学科分类: | Energy
; Earth and Planetary Sciences
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| 英文摘要: | Faults are important components of hydrocarbon and other reservoirs; they can affect trapping of fluids, flow pathways, compart-mentalization, production rates, and through these, production strategies and economic outcomes. Displacement gradients on faults are associated with off-fault deformation, which can be manifest as faulting, extension fracturing, or folding. In this work, displacement gradients-both in the slip direction and laterally-on a well-exposed large-displacement (seismic-scale) normal fault within the Balcones fault system of south-central Texas are correlated with anomalous deformation patterns adjacent to the fault. This anomalous deformation consists of two superimposed small-displacement fault systems, including (1) an earlier set that formed in response to a displacement gradient in the slip direction, and (2) a later set of oblique faults that formed in a perturbed stress-and-strain field in response to a lateral displacement gradient on the fault. Bed dip, fault-cutoff relationships, and small-displacement fault patterns in the adjacent rock volume inform strain and paleostress estimates. Results indicate that seismically resolvable displacement gradients on and bed dips adjacent to the seismic-scale fault provide a means by which the smaller (subseismic-scale and off-fault) deformation features can be predicted both in terms of orientation and intensity. Specifically, lateral displacement gradients on a normal fault with dip-slip displacement will generate fault-strike-parallel extension, causing anomalously oriented (in the far-field stress context) deformation features adjacent to the fault. Displacement gradient analysis can be used to help predict the characteristics of subseismic-scale deformation within a reservoir adjacent to a seismic-scale normal fault. Copyright © 2014. The American Association of Petroleum Geologists. All rights reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84903616410&doi=10.1306%2f10311312204&partnerID=40&md5=14428399eae73910b0bab96c60d8cb46
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/13116
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| Recommended Citation: | |
Morris A.P.,McGinnis R.N.,Ferrill D.A.. Fault displacement gradients on normal faults and associated deformation[J]. AAPG Bulletin,2014-01-01,98(6)
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